ScienceDirect® Home Skip Main Navigation Links
You have guest access to ScienceDirect. Find out more.
 
Home
Browse
My Settings
Alerts
Help
 Quick Search
 Search tips (Opens new window)
    Clear all fields    
 
Font Size: Decrease Font Size  Increase Font Size
 Abstract - selected
Article
Purchase PDF (382 K)

Article Toolbox
 
 
 
Related Articles in ScienceDirect
View More Related Articles
 
View Record in Scopus
 
doi:10.1016/j.jeurceramsoc.2005.09.036    
How to Cite or Link Using DOI (Opens New Window)

Copyright © 2005 Elsevier Ltd All rights reserved.

Microstructure and properties of Al2O3–TiC nanocomposites fabricated by spark plasma sintering from high-energy ball milled reactants

Purchase the full-text article



References and further reading may be available for this article. To view references and further reading you must purchase this article.

Yanfeng Zhanga, Lianjun Wanga, Wan JiangCorresponding Author Contact Information, a, E-mail The Corresponding Author, Lidong Chena and Guangzhao Baia

aState Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China


Received 9 June 2005; 
revised 27 August 2005; 
accepted 3 September 2005. 
Available online 24 October 2005.

Abstract

In situ synthesis of Al2O3–TiC nanocomposite powders from a mixture of titanium, graphite, and Al2O3 powders by high-energy ball milling (HEBM) and its consolidation through spark plasma sintering (SPS) were investigated. After being milled for 25 h at ambient temperature, the powder mixtures were mainly composed of homogeneous nanosized Al2O3 particle and amorphous TiC solid solution. The relative density of the samples consolidated by SPS technique in vacuum at 1480 °C for 4 min reached 99.2%. The final products exhibited very fine microstructure, and the grain sizes of Al2O3 and TiC were about 400 nm and 200 nm, respectively, with a flexure strength of 944 ± 21 MPa, Vickers hardness 21.0 ± 0.3 GPa, fracture toughness 3.87 ± 0.2 MPa m1/2, and electrical conductivity 1.2787 × 105 S m−1.

Keywords: Al2O3–TiC; Milling; Nanocomposites; Mechanical properties; SPS

Article Outline

1. Introduction
2. Experimental procedure
3. Results and discussion
4. Conclusions
Acknowledgements
References






Corresponding Author Contact InformationCorresponding author. Tel.: +86 21 52411118; fax: +86 21 52413122.

 
Home
Browse
My Settings
Alerts
Help
Elsevier.com (Opens new window)
About ScienceDirect  |  Contact Us  |  Information for Advertisers  |  Terms & Conditions  |  Privacy Policy
Copyright © 2008 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.